Product code: HEL030 EN ISO 20471 CL 1 HiVis. 85% Polyester, 15% Cotton - 248 g/m2. Contrast color: 65% Polyester, 35% cotton - 245 g/m2. Reinforcement: 100% Nylon Oxford - 195 g/m2. Reflective bands. More Information Helly Hansen Mens Alta Construction Polyester Cotton Workwear Trousers